Lecture 17: Cardinality & Degree of Relationship in ER Diagrams Explained
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Lecture 17: Cardinality & Degree of Relationship in ER Diagrams Explained
In Lecture 17, we move forward in ER diagram modeling by exploring relationships between entities, starting with the degree of relationship and then introducing the concept of cardinality. This lecture explains how entities are connected in databases and how to correctly identify whether a relationship is unary (recursive), binary, or ternary ...
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